Finding the Fourth Proportional to 9,221.25, 12,725.34 and 5,029.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,221.25 : 12,725.34 = 5,029.50 : x
2. Step 2: Convert to fraction form
   9,221.25/12,725.34 = 5,029.50/x
3. Step 3: Cross multiply
   9,221.25x = 12,725.34 × 5,029.50
4. Step 4: Simplify right side
   9,221.25x = 64,002,097.53
5. Step 5: Solve for x
   x = 64,002,097.53/9,221.25
6. Step 6: Final answer
   x = 6,940.72